- LG Software Innovations Coffeemaker User Manual
Table Of Contents
- Title Page
- Revision history
- Contents
- About this guide
- Description
- System requirements
- List of ITG ISDN components
- Ordering rules and guidelines
- ITG ISL Trunk card description
- ITG ISL Trunk card physical description
- ISDN Signaling Link
- Dialing plans
- Quality of Service
- Fallback to alternate facilities
- Type of Service
- Fax support
- Remote Access
- Per-call statistics support using RADIUS Client
- SNMP MIB
- Codec profiles
- Security passwords
- ITG Engineering Guidelines
- Introduction
- Network engineering guidelines overview
- ITG traffic engineering
- Configuration of Meridian 1 routes and network translation
- Assess WAN link resources
- QoS Evaluation Process Overview
- Set QoS
- Measure intranet QoS
- Implement QoS in IP networks
- ITG Trunk DSP profile settings
- Post-installation network measurements
- Estimate QoS level
- ITG MAT PC management configuration
- Install and configure ITG ISL Trunk node
- Before you begin
- Installation Procedure Summary
- Create the ITG Trunk Installation Summary Sheet
- Install and cable ITG trunk cards
- Install NTCW84JA Large System I/O Panel 50-Pin filter adapter
- Install NTMF94EA and NTCW84KA cables
- D-channel cabling for the NT0961AA 24-Port ITG Trunk card
- Set NT6D80 MSDL switches
- Install filter and NTND26 cable (for MSDL and DCHIP cards in same Large System equipment row)
- Install filter and NTND26 cable (for MSDL and DCHIP cards in different Large System equipment rows)
- Configure ITG Trunk data on the Meridian 1
- Configure dialing plans within the corporate network
- Configure ITG Trunk data on MAT
- Transmit ITG trunk card configuration data from MAT to the ITG trunk cards
- Set date and time for the ITG ISL Trunk node
- Change the default ITG shell password to maintain access security
- Change default ESN5 prefix for non-ESN5 IP telephony gateways
- Check card software
- Configure MAT Alarm Management to receive SNMP traps from ITG ISL Trunk cards
- Make test calls to the remote ITG nodes
- Upgrade an ITG Trunk 1.0 node to support ISDN signaling trunks
- Upgrade procedure summary
- Before you begin
- Install the DCHIP hardware upgrade kit
- Upgrade the 8-port ITG basic trunk software to ITG ISL trunk software
- Remove ITG 1.0 configuration data from Meridian 1
- Configure the Meridian 1 ITG ISL Trunk data: upgrade considerations
- Verify ROM-BIOS version
- Upgrade Troubleshooting
- OA&M using MAT applications
- OA&M using the ITG shell CLI and overlays
- Maintenance
- Appendix A: Calbe description and NT8D81BA cable replacement
- NTMF94EA E - LAN, T - LAN and Serial Port cable
- NTCW84KA E-LAN, T-LAN, DCH & Serial cable
- NTAG81CA Faceplate Maintenance cable
- NTAG81BA Maintenance Extender cable
- NTCW84EA DCH PC Card Pigtail cable
- NTMF04BA MSDL extension cable
- NTCW84LA and NTCW84MA upgrade cables
- Prevent ground loops on connection to external customer LAN equipment
- Replace cable NT8D81BA with NT8D81AA
- Tools list
- NT8D81BA cable removal procedures
- Appendix B: Environmental and electrical regulatory data
- Appendix C: Subnet mask conversion from CIDR to dotted decimal format
- Appendix D: Configure a Netgear RM356 modem router for remote access
- Index
- Back
Page 328 of 378 Maintenance
553-3001-202 Standard 1.00 April 2000
DCH link failure
The DCH link can change to the RLS (release) state due to technician action
in LD 96, MSDL or SDI/DCH card failure, or cable failure. This condition is
detected on the DCHIP card by the PC Card signaling that the L2 connection
has failed.
PC card failure
The PC card failure can be detected in various ways, through
• missing heartbeat transmission
• a hardware interrupt
When the software does not send “an activity test message” (heartbeat
message) to the Card Services of the PC Card Device Driver during a period
greater than n seconds, Card Services consider it a breakdown detection. Card
Services tries to reset the PC Card. Card Services are responsible for making
sure of the conformance of the reset timing. Card Services also check and
wait for the card to reach the READY state.
Socket Services are responsible for card insertion and removal. There is a
single interruption shared for insertion and removal events and a single
interruption for device specific interruptions. Socket Services identify which
socket originates the interruption and sends the interruption to the Card
Services interruption handler. Card Services then wait and re - initialize the
PC Card, if the card is plugged in again and is in the READY state.
Do not insert or remove the PC Card when the ITG card is plugged in.
DCHIP card failure
This occurs when the DCHIP ITG card goes out of service. The DCHIP ITG
card failure case is similar to the DCH link failure case. However, all call
reference information is gone. As a result, when the DCHIP comes back up,
it sends a “REStart” message to the other side to re - initialize all the trunks.
All the established calls are cancelled.
Power loss
Since the ITG card is based on Flash EPROM technology, all configuration
data is preserved for 10 years. There is no requirement for a battery backup
for the card. The ITG card can be removed from the IPE shelf indefinitely and
still retain all configuration data.